net: mctp: test: make cloned_frag buffers more appropriately-sized

In our input_cloned_frag test, we currently allocate our test buffers
arbitrarily-sized at 100 bytes.

We only expect to receive a max of 15 bytes from the socket, so reduce
to a more appropriate size. There are some upcoming changes to the
routing code which hit a frame-size limit on s390, so reduce the usage
before that lands.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://patch.msgid.link/20250702-dev-forwarding-v5-2-1468191da8a4@codeconstruct.com.au
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/net/mctp/test/route-test.c b/net/mctp/test/route-test.c
index 06c1897b685a8bdfd6bb4f1bccaacb53b0cd54ba..44ebc8e4e30c6a8f91360926ede99510df2576b2 100644 (file)
--- a/net/mctp/test/route-test.c
+++ b/net/mctp/test/route-test.c
@@ -933,20 +933,18 @@ static void mctp_test_route_input_cloned_frag(struct kunit *test)
                RX_FRAG(FL_S, 0),
                RX_FRAG(FL_E, 1),
        };
+       const size_t data_len = 3; /* arbitrary */
+       u8 compare[3 * ARRAY_SIZE(hdrs)];
+       u8 flat[3 * ARRAY_SIZE(hdrs)];
        struct mctp_test_route *rt;
        struct mctp_test_dev *dev;
        struct sk_buff *skb[5];
        struct sk_buff *rx_skb;
        struct socket *sock;
-       size_t data_len;
-       u8 compare[100];
-       u8 flat[100];
        size_t total;
        void *p;
        int rc;
 
-       /* Arbitrary length */
-       data_len = 3;
        total = data_len + sizeof(struct mctp_hdr);
 
        __mctp_route_test_init(test, &dev, &rt, &sock, MCTP_NET_ANY);